Add mpriscella/features to collection index

[mpriscella]

Adds https://github.com/mpriscella/features to the collection index.

I couldn't find any guidance on submitting a personal collection of features, but figured it was worth the PR. These are features to add a series of command line tools that I've found useful professionally and personally.

If a personal collection is inappropriate for this, please let me know and I'll find an alternate solution.

[craiglpeters]

Hi @mpriscella great minds think alike! kubernetes-sigs/kind#2967. Maybe you can explain your use case to Ben in that issue?

[joshspicer]

Hey @mpriscella - We absolutely want to help surface Features from individual contributors in the community. Thanks for taking the time to opening this PR.

One thing i'll need you do to before I merge this - the ghcr.io/mpriscella/features package doesn't appear to be public (I don't see it when navigating to https://github.com/mpriscella?tab=packages&repo_name=features in a private browser)

Once you mark that "metadata" package as public, we will be able to crawl the Features and add to our index

[mpriscella]

Hi @joshspicer, thanks for the feedback! I wasn't aware that package was for metadata and I've just changed the visibility to public.

@craiglpeters Awesome! I'd be happy to respond to Ben in that issue.